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Re: rcs configure hang


From: Kelly Wang (kellythw)
Subject: Re: rcs configure hang
Date: Thu, 5 Nov 2020 16:11:32 +0000
User-agent: Microsoft-MacOutlook/16.42.20101102

Hi Paul or gnulib guru,

Can you share any thought for the configure hanging problem while configure rcs?

+ ./configure
<snip>
checking whether fcntl handles F_DUPFD correctly... yes
checking whether fcntl understands F_DUPFD_CLOEXEC... needs runtime check
checking whether conversion from 'int' to 'long double' works... yes
checking whether getcwd handles long file names properly...

Thanks,
Kelly
 
If you need support for DevX Tools:   http://devxsupport.cisco.com/
Specifically, for NXOS, see -
https://wiki.cisco.com/display/NEXUSPMO/ContactingNexusOpsAndTools
 

´╗┐On 10/27/20, 8:36 AM, "Kelly Wang (kellythw)" <kellythw@cisco.com> wrote:

    Hi Paul,

    You are right, after remove confdir3, rerun strace hang.
    Checked tr output, it stopped at bunch of mkdir and chdir and no further 
steps after that.
    mkdir("confdir3", 0700)                 = 0
    chdir("confdir3")                       = 0

    Thanks,
    Kelly

    If you need support for DevX Tools:   http://devxsupport.cisco.com/
    Specifically, for NXOS, see -
    https://wiki.cisco.com/display/NEXUSPMO/ContactingNexusOpsAndTools


    On 10/26/20, 3:56 PM, "Paul Eggert" <eggert@cs.ucla.edu> wrote:

        On 10/26/20 9:13 AM, Kelly Wang (kellythw) wrote:

        > [Kelly] strace step is not hang and I have tr generated.

        Looking at the tr file, it appears that there was already a directory 
confdir3 
        when you ran the strace step, and this directory messed up the test. 
Please 
        remove that directory (or rename it) and then re-run the "strace -o tr 
./a.out". 
        As before, the strace should also hang so you may need to type 
control-C to exit 
        it after a while. Look at the resulting 'tr' file and compare it to the 
        compressed file tr.gz I sent you earlier.

        > [Kelly] The difference of tr output start at:
        > 
        > openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", 
O_RDONLY|O_CLOEXEC) = 3  ==> output from yours
        > 
        > openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3  ==> my 
output

        That difference is unimportant. I'm concerned more about what happens 
after the 
        long string of mkdir/chdir calls, which should occur once you get 
confdir3 out 
        of the way.



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